The starter and exit quiz of the lesson “Power of an appliance or electric circuit”, from the unit “Mains electricity” (Year 11 Science) by Oak National Academy.
Free to use. Edit it, share it and hand it out to your students.
Oak National Academy
12 questions
Which of the following are ways of writing the definition of power?
A mains circuit includes a fuse. Which of the following makes a fuse ‘blow’?
What is the potential difference across the resistor in the circuit shown?
What is the missing current in the circuit shown?
A cell is connected to a lamp and a current flows. What happens to the current through the cell if another lamp is added in parallel with the first lamp?
An ammeter shows that the current through a resistor is 0.40 A and a voltmeter shows that the p.d. across it is 1.5 V. A pupil calculates the resistance. Which of these answers should they give?
A lamp has power of 7 W. Which of the following explains what this means?
When an iron is working correctly, the current through it varies between 1.6 A and 3.3 A. Which of the following fuse sizes should be used in the plug of this iron?
Which of the following could cause a circuit breaker to switch off a circuit?
The current through a lamp is 1.5 A and the p.d. across it is 12 V. The power of the lamp is ___ W.
What is the current through a 600 W lawnmower that is plugged into the mains?
A 1300 W iron and a 1000 W hairdryer are plugged into a mains circuit, in parallel. What is the current through a circuit breaker in the consumer unit?
